Plastics
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Lightweight and shatterproof, polyethylene terephthalate (PET) plastic is recyclable, although most items made from it don't get recycled. This is because reclaimed PET (rPET) just isn't as good as the original material. A new "upcycling" process, however, is claimed to make it even better.
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Ordinarily, if you want to join metal and plastic items together, you have to use either adhesives or rivets. Engineers at Germany's Fraunhofer Institute for Material and Beam Technology, however, have developed a bonding "gun" that they claim makes for a much faster and cheaper joining process.
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Food and beverage giant Nestlé is ramping up its efforts to rein in plastic pollution, outlining plans to phase out plastic straws and hard plastics as part of a wider plan to use purely recyclable and reusable materials in its products by 2025.
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Things aren't exactly going to plan for the Ocean Cleanup Project. Inspections of the approximately 600-meter-long barrier have uncovered a problematic break in the chain, prompting a return to shore for repairs.
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Plastic waste is a major problem in the world's oceans, which is why some groups have developed bioplastics that break down in the sea. Even those aren't entirely eco-friendly, though, which is why Israeli scientists are working on one that's derived from marine microorganisms.
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There remains a lot we don't know about the whereabouts of the all the plastic waste that washes into the ocean each year, but scientists are continuing to discover bits and pieces in increasingly concerning places, a list that now includes turtles.
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With the Ocean Cleanup Project's first system entering service in the Great Pacific Garbage Patch one month ago, there are some good signs and some bad, including an apparent inability of the huge floating barrier to retain plastic trash for very long after it is caught.
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Pop bottles are one of the most common types of plastic waste, so the more ways that we can find of recycling them, the better. With that in mind, researchers at the National University of Singapore (NUS) have developed an inexpensive method of converting such bottles into a very useful aerogel.
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The European Parliament has just announced plans to tackle the tide of plastic pollution. Members of the European Parliament have this week voted in favor of a plan that would see items like single-use cutlery and straws banned from 2021 onwards.
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It has been a long journey for the Ocean Cleanup Project, but after years of development and a 1,300-plus-mile trip through the open water, its first system is now installed at the Great Pacific Garbage Patch, the single biggest accumulation of ocean plastics in the world.
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SodaStream is looking to play an active role in tackling the mounting problem of plastics in the ocean, starting with a pilot project testing a new device to collect marine waste from waters off the coast of Roatán, Honduras.
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As we start to really get a grasp on the magnitude of the Great Pacific Garbage Patch, elsewhere in the ocean plastic waste is mounting on the shores of some of the most remote islands, with a new study revealing the true extent of the mess and the threat it poses to local species.